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68747084844 = 2235728923737
BaseRepresentation
bin100000000000110100…
…1010100010000101100
320120110002202202101120
41000001221110100230
52111243223203334
651325412340540
74652421402534
oct1000151242054
9216402682346
1068747084844
1127178a343a9
12113a7314750
1366379b6c39
1434824704c4
151bc5621949
hex1001a5442c

68747084844 has 12 divisors (see below), whose sum is σ = 160409864664. Its totient is φ = 22915694944.

The previous prime is 68747084827. The next prime is 68747084849. The reversal of 68747084844 is 44848074786.

It is a tau number, because it is divible by the number of its divisors (12).

It is a Smith number, since the sum of its digits (60) coincides with the sum of the digits of its prime factors.

It is not an unprimeable number, because it can be changed into a prime (68747084849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2864461857 + ... + 2864461880.

It is an arithmetic number, because the mean of its divisors is an integer number (13367488722).

Almost surely, 268747084844 is an apocalyptic number.

It is an amenable number.

68747084844 is an abundant number, since it is smaller than the sum of its proper divisors (91662779820).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

68747084844 is a wasteful number, since it uses less digits than its factorization.

68747084844 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5728923744 (or 5728923742 counting only the distinct ones).

The product of its (nonzero) digits is 38535168, while the sum is 60.

The spelling of 68747084844 in words is "sixty-eight billion, seven hundred forty-seven million, eighty-four thousand, eight hundred forty-four".

Divisors: 1 2 3 4 6 12 5728923737 11457847474 17186771211 22915694948 34373542422 68747084844